Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Dell XPS 15z

Found this: ubuntu hardware support 15z

Have been able to get ubuntu booted up off usb with acpi=off. My question is, once Ive installed and my boot line includes either 'acpi=off' or 'acpi=noirq' will i ruin my hardware running this as my daily driver?

being a noob about three years ago i started running backtrack 3,4 on my vostro 1500... and let me tell you, its hardware is COOKED. hence why i had to buy new system. not trying to make same mistake.


share|improve this question
Can you explain how kernel settings can cook hardware? – Sergey Nov 1 '11 at 0:58
'Power Interface' - lead me to believe it may have something to do with power management... such as the computer running so hot or the fan running full blast – cory Nov 1 '11 at 1:34

Probably not. See which says:

acpi=       [HW,ACPI,X86]
        Advanced Configuration and Power Interface
        Format: { force | off | strict | noirq | rsdt }
        force -- enable ACPI if default was off
        off -- disable ACPI if default was on
        noirq -- do not use ACPI for IRQ routing
        strict -- Be less tolerant of platforms that are not
            strictly ACPI specification compliant.
        rsdt -- prefer RSDT over (default) XSDT
        copy_dsdt -- copy DSDT to memory

        See also Documentation/power/pm.txt, pci=noacpi

Looks harmless to me

share|improve this answer

if your machine uses ACPI...

cat /proc/acpi/thermal_zone/THM0/temperature

echo level auto > /proc/acpi/ibm/fan

seems like if no acpi, fan runs full blast, cpu gets hot, and then, i think, non stop hot hardware means less life.


share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.